On Line Transformer Oil Filtration Process Protects Environment

A necessary requirement of all industrial and utility customers across the world is regular maintenance of the transformer devices. Apart from avoiding over voltages, oil filtration is the next process that promotes longevity of the transformer. Manufacturers today perform on line transformer oil filtration in order to make the transformer oil free from contaminants and bring back the efficient performance of the device.

A transformer needs pure clean oil to ensure insulation and dielectric properties. The oil filtration or reclamation process includes “oil absorbent clay” usage within a large filtration tanks. In the recycling method, the clay used by engineers helps in capturing all impurities and debris from the oil. However, the entire lot of saturated clay is disposed in large 55 gallon drums.

Engineers have learned that the clay could be recycled and restored in a new-like condition. All they need to use is a reactivation heat process. The temperature of this heat process is such that 10-20% of the oil presents in the clay combusts and the balance is gathered in an air/oil separator.

The process saves time as there is no need of dehydrating the oil after clay reactivation process. This lowers the amount of passes from 10 to 6. It means the maintenance time gets decreased by up to 40% and the residual wastage is 94% less as compared to traditional methods used by some industries.

The other method of transformer oil filtration is a continuous circulation of oil via purification units in a closed loop system. The oil sieves through several filters of both coarse and fine filter mediums prior the system continues the cleaning of oil using a vacuum drying, degassing, and absorption process. The method is intended for expelling sludge, dirt, dissolved gases and other visible and invisible particles from the oil.

Manufacturers believe that on line transformer oil filtration processes is anyways a better choice to make. You can book the date and make a request to engineers to perform oil filtration process to make your transformer efficient again.